Based on the on-line calculating model of boiler efficiency

heat consumption rate of unit

and consumption rate of auxiliary power

an on-line calculating model for net coal consumption rate has been established

and its benchmarking reference model being constructed on the basis of designed coal sort and designed parameters for unit.Taking one 350MW unit as example

the benchmarking reference value for unit's coal consumption rate

which changes along with variation of load and quality of furnace-entering coal

has been determined

so as to realize the dynamic calculation of benchmarking reference for the main indices in power plant

providing with reference for index evaluotion and energy-saving analysis in power plant.